Blue Planetary

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Sir John Frederick William Herschel (1792—1871) mathematician and astronomer


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The 8th-magnitude planetary nebula NGC 3918 in Centaurus. The name was given it by J. F. W. Herschel, who described it as like Uranus but larger. It is about 2600 l.y. away.

Subjects: Astronomy and Astrophysics.

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